forked from Minki/linux
wl1271: Fix filter configuration
Fix the filter configuration to properly work with the two phase filter configuration (prepare_multicast/configure_filter.) Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Juuso Oikarinen
John W. Linville
parent
bd5ea18f7b
commit
b54853f1b1
@ -363,9 +363,6 @@ struct wl1271 {
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struct work_struct tx_work;
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struct work_struct filter_work;
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struct wl1271_filter_params *filter_params;
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/* Pending TX frames */
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struct sk_buff *tx_frames[ACX_TX_DESCRIPTORS];
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@ -675,74 +675,6 @@ out:
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return ret;
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}
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struct wl1271_filter_params {
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unsigned int filters;
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unsigned int changed;
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int mc_list_length;
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u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
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};
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#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
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FIF_ALLMULTI | \
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FIF_FCSFAIL | \
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FIF_BCN_PRBRESP_PROMISC | \
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FIF_CONTROL | \
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FIF_OTHER_BSS)
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static void wl1271_filter_work(struct work_struct *work)
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{
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struct wl1271 *wl =
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container_of(work, struct wl1271, filter_work);
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struct wl1271_filter_params *fp;
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unsigned long flags;
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bool enabled = true;
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int ret;
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/* first, get the filter parameters */
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spin_lock_irqsave(&wl->wl_lock, flags);
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fp = wl->filter_params;
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wl->filter_params = NULL;
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spin_unlock_irqrestore(&wl->wl_lock, flags);
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if (!fp)
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return;
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/* then, lock the mutex without risk of lock-up */
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mutex_lock(&wl->mutex);
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if (wl->state == WL1271_STATE_OFF)
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goto out;
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ret = wl1271_ps_elp_wakeup(wl, false);
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if (ret < 0)
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goto out;
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/* configure the mc filter regardless of the changed flags */
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if (fp->filters & FIF_ALLMULTI)
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enabled = false;
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ret = wl1271_acx_group_address_tbl(wl, enabled,
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fp->mc_list, fp->mc_list_length);
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if (ret < 0)
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goto out_sleep;
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/* determine, whether supported filter values have changed */
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if (fp->changed == 0)
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goto out;
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/* apply configured filters */
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ret = wl1271_acx_rx_config(wl, wl->rx_config, wl->rx_filter);
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if (ret < 0)
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goto out_sleep;
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out_sleep:
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wl1271_ps_elp_sleep(wl);
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out:
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mutex_unlock(&wl->mutex);
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kfree(fp);
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}
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int wl1271_plt_start(struct wl1271 *wl)
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{
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int ret;
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@ -993,20 +925,12 @@ out:
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static void wl1271_op_stop(struct ieee80211_hw *hw)
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{
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struct wl1271 *wl = hw->priv;
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unsigned long flags;
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int i;
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wl1271_info("down");
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wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
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/* complete/cancel ongoing work */
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cancel_work_sync(&wl->filter_work);
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spin_lock_irqsave(&wl->wl_lock, flags);
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kfree(wl->filter_params);
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wl->filter_params = NULL;
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spin_unlock_irqrestore(&wl->wl_lock, flags);
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unregister_inetaddr_notifier(&wl1271_dev_notifier);
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list_del(&wl->list);
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@ -1029,7 +953,6 @@ static void wl1271_op_stop(struct ieee80211_hw *hw)
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cancel_work_sync(&wl->irq_work);
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cancel_work_sync(&wl->tx_work);
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cancel_work_sync(&wl->filter_work);
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mutex_lock(&wl->mutex);
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@ -1252,19 +1175,18 @@ out:
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return ret;
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}
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struct wl1271_filter_params {
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bool enabled;
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int mc_list_length;
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u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
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};
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static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw, int mc_count,
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struct dev_addr_list *mc_list)
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{
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struct wl1271 *wl = hw->priv;
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struct wl1271_filter_params *fp;
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unsigned long flags;
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int i;
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/*
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* FIXME: we should return a hash that will be passed to
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* configure_filter() instead of saving everything in the context.
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*/
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fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
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if (!fp) {
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wl1271_error("Out of memory setting filters.");
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@ -1272,9 +1194,10 @@ static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw, int mc_count,
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}
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/* update multicast filtering parameters */
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fp->enabled = true;
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if (mc_count > ACX_MC_ADDRESS_GROUP_MAX) {
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mc_count = 0;
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fp->filters |= FIF_ALLMULTI;
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fp->enabled = false;
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}
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fp->mc_list_length = 0;
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@ -1288,42 +1211,65 @@ static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw, int mc_count,
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mc_list = mc_list->next;
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}
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/* FIXME: We still need to set our filters properly */
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spin_lock_irqsave(&wl->wl_lock, flags);
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kfree(wl->filter_params);
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wl->filter_params = fp;
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spin_unlock_irqrestore(&wl->wl_lock, flags);
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return 1;
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return (u64)(unsigned long)fp;
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}
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#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
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FIF_ALLMULTI | \
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FIF_FCSFAIL | \
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FIF_BCN_PRBRESP_PROMISC | \
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FIF_CONTROL | \
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FIF_OTHER_BSS)
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static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
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unsigned int changed,
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unsigned int *total, u64 multicast)
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{
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struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
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struct wl1271 *wl = hw->priv;
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int ret;
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wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter");
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mutex_lock(&wl->mutex);
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if (wl->state == WL1271_STATE_OFF)
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goto out;
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ret = wl1271_ps_elp_wakeup(wl, false);
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if (ret < 0)
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goto out;
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*total &= WL1271_SUPPORTED_FILTERS;
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changed &= WL1271_SUPPORTED_FILTERS;
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if (!multicast)
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return;
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if (*total & FIF_ALLMULTI)
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ret = wl1271_acx_group_address_tbl(wl, false, NULL, 0);
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else if (fp)
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ret = wl1271_acx_group_address_tbl(wl, fp->enabled,
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fp->mc_list,
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fp->mc_list_length);
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if (ret < 0)
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goto out_sleep;
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/*
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* FIXME: for now we are still using a workqueue for filter
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* configuration, but with the new mac80211, this is not needed,
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* since configure_filter can now sleep. We now have
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* prepare_multicast, which needs to be atomic instead.
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*/
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kfree(fp);
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/* store current filter config */
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wl->filter_params->filters = *total;
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wl->filter_params->changed = changed;
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/* FIXME: We still need to set our filters properly */
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ieee80211_queue_work(wl->hw, &wl->filter_work);
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/* determine, whether supported filter values have changed */
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if (changed == 0)
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goto out_sleep;
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/* apply configured filters */
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ret = wl1271_acx_rx_config(wl, wl->rx_config, wl->rx_filter);
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if (ret < 0)
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goto out_sleep;
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out_sleep:
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wl1271_ps_elp_sleep(wl);
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out:
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mutex_unlock(&wl->mutex);
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}
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static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
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@ -1866,7 +1812,6 @@ static int __devinit wl1271_probe(struct spi_device *spi)
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skb_queue_head_init(&wl->tx_queue);
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INIT_WORK(&wl->filter_work, wl1271_filter_work);
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INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
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wl->channel = WL1271_DEFAULT_CHANNEL;
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wl->scanning = false;
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